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Technical & Reference Section => Tech and Restoration => Topic started by: hooga1975 on November 10, 2007, 04:40 PM

Title: Gearing Question
Post by: hooga1975 on November 10, 2007, 04:40 PM

What size chainring will I need to achive the same gearing as 44/16 on 26" wheels if I am planing on using a 16t free wheel?
Cheers
Lee

Title: Re: Gearing Question
Post by: stidds on November 10, 2007, 04:54 PM

Lee

I think that a 34 front chainring will have a similar effect.

44/16 on 20" wheels = 55 ratio
34/16 on 26" wheels = 55.2 ratio

Have a look at these 2 websites for information.

20" gear ratios

http://www.profileracing.com/manuals/racergear.pdf

26" gear ratios

http://www.machinehead-software.co.uk/gear_inch_ratio_table26.html

Title: Re: Gearing Question
Post by: hooga1975 on November 10, 2007, 06:13 PM

cheers stidds :daumenhoch:

Title: Re: Gearing Question
Post by: darkslider on November 10, 2007, 07:41 PM

If your running a longer top tube than a regular bike would you go down slightly on gearing? I'm thinking there would be more drag having extra length in rear stays and chain. What other factors aren't taken into account in gearing chart, weight of rider, fitness and height?